{ "model": { "rank": 8983, "code": "thing-q505781", "model_id": "vr.tr.protoplanetary-disk", "name": "protoplanetary disk", "purpose": "Let an agent describe protoplanetary disks by host star, structure, age and planet formation evidence, with sourced observations.", "family": "Thing Registry", "category": "Physical world and living systems", "status": "research-draft", "kind": "thing", "plane": "PHY", "domain": "PHY.SPC", "industry": "", "version": "", "url": "/models/thing/q505781/", "tier": 2, "score": 49, "payload": { "layer": "wikidata", "aliases": [ "proplyd" ], "aliasCount": 1, "merged": 1, "knownIn": 49, "facets": null, "markers": [], "lexicalClass": "", "senseRank": null, "alsoRegisteredAs": null, "source": { "dataset": "wikidata", "item": "Q505781", "url": "https://www.wikidata.org/wiki/Q505781", "license": "CC0 1.0" } }, "research": { "vercy": "1.0-draft", "publication": { "status": "research-draft", "adjudicationStatus": "unreviewed", "publishableCanonical": false, "generatedAt": "2026-09-11T09:19:58Z", "providers": [ "Claude" ], "breadth": "written by Claude from model knowledge without web access - no source was read, every claim is a lead to verify", "pass": 2, "wave": 1, "engine": "claude" }, "metaModel": { "id": "THING-Q505781", "registryId": "vr.tr.protoplanetary-disk", "name": "protoplanetary disk", "version": "0.2.0-wave.1", "entryKind": "thing", "family": "Thing Registry", "domain": [ "PHY.SPC" ], "status": "research-draft" }, "canonicalUrl": "https://ver.cy/models/thing/q505781/", "model": { "registry_id": "vr.tr.protoplanetary-disk", "name": "protoplanetary disk", "purpose": "Let an agent describe protoplanetary disks by host star, structure, age and planet formation evidence, with sourced observations.", "definition": "A rotating disk of gas and dust around a young star from which planets form, lasting a few million years; imaged as rings and gaps in some systems and seen as proplyds in star-forming regions such as Orion.", "what_it_is_for": "Understanding how planets and planetary systems form.", "affordances": [ "describe disk structure", "relate gaps to possible planets", "follow observations from radio and infrared telescopes", "compare with debris disks" ], "distinguishing_features": [ "Gas and dust around young stars", "Sites of planet formation", "Short-lived", "Imaged with interferometers" ], "appearance": "Flattened disks with rings and gaps in high-resolution images.", "visual_identification": [ "Disks around young stars", "Rings and gaps in millimetre images", "Debris disks are later-stage" ], "physical_properties": [ { "quantity": "lifetime", "typical_range": "about 1-10", "unit": "million years", "note": "" }, { "quantity": "radius", "typical_range": "about 10-1000", "unit": "au", "note": "typical range" } ], "families_and_kinds": [ "classical protoplanetary disks", "transition disks", "proplyds (photoevaporating disks)", "circumbinary disks" ], "related_models": [ { "relation": "is a kind of", "target": "circumstellar disk", "why": "category" }, { "relation": "surrounds", "target": "young star", "why": "host" }, { "relation": "forms", "target": "planet", "why": "product" }, { "relation": "is contrasted with", "target": "debris disk", "why": "later stage" } ], "identifiers": [ { "scheme": "host star designation", "value_or_pattern": "catalogue ids", "note": "systems" } ], "standards_and_regulation": [ "IAU nomenclature" ], "failure_modes_and_hazards": [ "Claiming planets from gaps without confirmation", "Presenting images without noting processing" ], "in_scope": [], "out_of_scope": [], "characteristics": [] }, "sources": [], "structure": { "bundles": [ { "id": "system", "name": "System", "description": "Which disk.", "rationale": "Host and age.", "layers": [ { "id": "host", "name": "Host", "description": "Star.", "findings": [ { "id": "host-finding", "name": "Host", "description": "Host star.", "questions": [ { "text": "Which young star hosts the disk?", "kind": "provenance" }, { "text": "How old is the system?", "kind": "measurement" } ] } ] }, { "id": "type", "name": "Type", "description": "Classical or transition.", "findings": [ { "id": "type-finding", "name": "Type", "description": "Disk type.", "questions": [ { "text": "What type of disk is it?", "kind": "definition" }, { "text": "What distinguishes it?", "kind": "definition" } ] } ] } ] }, { "id": "structure", "name": "Structure", "description": "Rings and gaps.", "rationale": "Structure hints at planets.", "layers": [ { "id": "features", "name": "Features", "description": "Rings, gaps, spirals.", "findings": [ { "id": "features-finding", "name": "Features", "description": "Disk features.", "questions": [ { "text": "Which rings, gaps or spirals are observed?", "kind": "provenance" }, { "text": "At what resolution?", "kind": "measurement" } ] } ] }, { "id": "planets", "name": "Planets", "description": "Evidence.", "findings": [ { "id": "planets-finding", "name": "Planets", "description": "Planet evidence.", "questions": [ { "text": "Is there confirmed evidence of planets forming in the disk?", "kind": "boundary" }, { "text": "Or are gaps only suggestive?", "kind": "boundary" } ] } ] } ] }, { "id": "composition", "name": "Composition", "description": "Gas and dust.", "rationale": "Chemistry matters.", "layers": [ { "id": "dust", "name": "Dust", "description": "Grains.", "findings": [ { "id": "dust-finding", "name": "Dust", "description": "Dust.", "questions": [ { "text": "What do observations reveal about dust grains?", "kind": "provenance" }, { "text": "How is dust mass estimated?", "kind": "measurement" } ] } ] }, { "id": "gas", "name": "Gas", "description": "Molecules.", "findings": [ { "id": "gas-finding", "name": "Gas", "description": "Gas.", "questions": [ { "text": "Which molecules are detected?", "kind": "provenance" }, { "text": "What does that imply for planets?", "kind": "provenance" } ] } ] } ] }, { "id": "observation", "name": "Observation", "description": "Telescopes.", "rationale": "Interferometers image disks.", "layers": [ { "id": "instruments", "name": "Instruments", "description": "Radio and infrared.", "findings": [ { "id": "instruments-finding", "name": "Instruments", "description": "Instruments.", "questions": [ { "text": "Which telescopes observed it?", "kind": "provenance" }, { "text": "In which wavelengths?", "kind": "definition" } ] } ] }, { "id": "images", "name": "Images", "description": "Processing.", "findings": [ { "id": "images-finding", "name": "Images", "description": "Image processing.", "questions": [ { "text": "How was the image processed?", "kind": "provenance" }, { "text": "Are colours representative?", "kind": "boundary" } ] } ] } ] } ] }, "openQuestions": [ "Should disk types be separate entries?", "How should survey data be linked?", "How should planet claims be marked?" ], "statistics": { "bundles": 4, "layers": 8, "findings": 8, "questions": 16 } }, "draft": { "generator": "vr.draft.v3", "status": "draft-generated", "researched": false, "archetype": "place or geographic feature", "method": "Written from the archetype playbook - what this kind of thing needs beyond identity and provenance - and from the structure that recurred across 6,333 models already researched by two engines. Applied to this entry by rule. No source was read for this thing and no claim here is researched. This entry carries no facets of its own, so they were inferred from its domain - a guess about a whole domain applied to one thing.", "facetsInferred": true, "nextPass": "A researcher replaces this draft with a sourced specification. Treat every sentence below as a proposal to argue with.", "purpose": "Give an agent a durable, checkable way to recognise a protoplanetary disk, record what state it is in, and decide what may be done with it.", "whatItIs": "Let an agent describe protoplanetary disks by host star, structure, age and planet formation evidence, with sourced observations.", "characteristics": { "substance": "material", "origin": "natural", "agency": "inert", "mobility": "fixed", "scale": "cosmic" }, "whatYouCanDoWithIt": [ "observed and measured" ], "distinguishingFeatures": [ "Names folded into this entry, which a task may need to split apart again: proplyd.", "1 finer distinctions are held as aliases rather than separate entries, because telling them apart needs a task that asks for it.", "Described in 49 Wikipedia languages, which is a measure of how widely the thing is known, not of how important it is." ], "openQuestionsForResearch": [ "Which of the bundles below does a real task actually need, and which are ceremony?", "What does this thing have that the facets do not capture at all?", "Which neighbouring kind is most often confused with a protoplanetary disk, and on what evidence are they told apart?" ], "whatItIsMadeOf": "matter you can touch", "physicalCharacter": [ "On an astronomical scale.", "Stays where it was put; moving it is a project.", "Does nothing on its own; everything it does, something else did to it.", "These come from the domain this entry sits in rather than from the entry itself, so treat them as a first guess about the whole domain applied to one thing." ], "whatCanBeDoneWithIt": [ "observe it, measure it, record its state" ], "howItIsRecognised": [ "Recognised by extent on the ground and by position, not by appearance. Two places that look alike are told apart by where they are." ], "relatedModels": [ { "relation": "covers", "note": "Finer kinds folded into this entry because telling them apart needs a task that asks for it. Each is a model waiting to be split out when one does.", "targets": [ "proplyd" ] } ], "standing": "Described in 49 Wikipedia languages, which measures how widely it is written about rather than how important or how common it is. 1 finer distinctions are held inside this entry as names rather than as separate models.", "structure": { "bundles": [ { "id": "identity-and-classification", "name": "Identity, naming and classification", "description": "How an agent tells one protoplanetary disk from another, and a protoplanetary disk from things that resemble it.", "rationale": "Recognition comes before every other claim. Without stable identity nothing else in the model can be trusted to be about the same thing twice.", "layers": [ { "id": "naming-and-identifiers", "name": "Names and identifiers", "description": "The names this thing goes by and the identifiers that survive translation and time.", "findings": [ { "id": "preferred-name-and-aliases", "name": "Preferred name, aliases and local names", "description": "Which name to use, which names mean the same thing, and which merely sound similar.", "questions": [ { "id": "preferred-name-and-aliases-q01", "text": "What identifies and describes the name of a protoplanetary disk, and in what units or vocabulary?", "kind": "definition", "answer_data": [ "identifiers", "types and classes", "values with units", "explicit unknowns" ] }, { "id": "preferred-name-and-aliases-q02", "text": "Who or what asserted this about the name of a protoplanetary disk, by which method, and when was it true?", "kind": "provenance", "answer_data": [ "authority", "method", "evidence", "event time", "knowledge time" ] }, { "id": "preferred-name-and-aliases-q03", "text": "What may an agent decide or do once the name of a protoplanetary disk is known, and what must it refuse?", "kind": "action", "answer_data": [ "permitted actions", "preconditions", "refusals", "escalation" ] } ] }, { "id": "stable-identifiers", "name": "Stable identifiers and external keys", "description": "Identifiers that keep pointing at this kind of thing across systems and languages.", "questions": [ { "id": "stable-identifiers-q01", "text": "What identifies and describes an identifier for a protoplanetary disk, and in what units or vocabulary?", "kind": "definition", "answer_data": [ "identifiers", "types and classes", "values with units", "explicit unknowns" ] }, { "id": "stable-identifiers-q02", "text": "Who or what asserted this about an identifier for a protoplanetary disk, by which method, and when was it true?", "kind": "provenance", "answer_data": [ "authority", "method", "evidence", "event time", "knowledge time" ] }, { "id": "stable-identifiers-q03", "text": "What may an agent decide or do once an identifier for a protoplanetary disk is known, and what must it refuse?", "kind": "action", "answer_data": [ "permitted actions", "preconditions", "refusals", "escalation" ] } ] } ] }, { "id": "classification-and-granularity", "name": "Classification and granularity", "description": "Where a protoplanetary disk sits among kinds, and how finely a task needs to cut it.", "findings": [ { "id": "kind-and-parents", "name": "Kind, parents and neighbouring kinds", "description": "The classes this thing belongs to and the ones it is next to.", "questions": [ { "id": "kind-and-parents-q01", "text": "What identifies and describes the kind of a protoplanetary disk, and in what units or vocabulary?", "kind": "definition", "answer_data": [ "identifiers", "types and classes", "values with units", "explicit unknowns" ] }, { "id": "kind-and-parents-q02", "text": "Who or what asserted this about the kind of a protoplanetary disk, by which method, and when was it true?", "kind": "provenance", "answer_data": [ "authority", "method", "evidence", "event time", "knowledge time" ] }, { "id": "kind-and-parents-q03", "text": "What may an agent decide or do once the kind of a protoplanetary disk is known, and what must it refuse?", "kind": "action", "answer_data": [ "permitted actions", "preconditions", "refusals", "escalation" ] } ] }, { "id": "distinguishing-features", "name": "Distinguishing features", "description": "What separates a protoplanetary disk from the things most often confused with it.", "questions": [ { "id": "distinguishing-features-q01", "text": "What identifies and describes what distinguishes a protoplanetary disk, and in what units or vocabulary?", "kind": "definition", "answer_data": [ "identifiers", "types and classes", "values with units", "explicit unknowns" ] }, { "id": "distinguishing-features-q02", "text": "Who or what asserted this about what distinguishes a protoplanetary disk, by which method, and when was it true?", "kind": "provenance", "answer_data": [ "authority", "method", "evidence", "event time", "knowledge time" ] }, { "id": "distinguishing-features-q03", "text": "What may an agent decide or do once what distinguishes a protoplanetary disk is known, and what must it refuse?", "kind": "action", "answer_data": [ "permitted actions", "preconditions", "refusals", "escalation" ] } ] } ] } ] }, { "id": "form-and-composition", "name": "Form, composition and condition", "description": "What a protoplanetary disk is made of, what shape and size it takes, and what state it is in.", "rationale": "A physical thing can be measured, and a model that cannot record its measurements cannot support any decision that depends on them.", "layers": [ { "id": "form-and-dimensions", "name": "Form and dimensions", "description": "Shape, size, mass and the ranges these take across examples at cosmic scale.", "findings": [ { "id": "measurable-dimensions", "name": "Measurable dimensions and their units", "description": "The quantities worth recording and the units they are recorded in.", "questions": [ { "id": "measurable-dimensions-q01", "text": "What identifies and describes the dimensions of a protoplanetary disk, and in what units or vocabulary?", "kind": "definition", "answer_data": [ "identifiers", "types and classes", "values with units", "explicit unknowns" ] }, { "id": "measurable-dimensions-q02", "text": "Who or what asserted this about the dimensions of a protoplanetary disk, by which method, and when was it true?", "kind": "provenance", "answer_data": [ "authority", "method", "evidence", "event time", "knowledge time" ] }, { "id": "measurable-dimensions-q03", "text": "What may an agent decide or do once the dimensions of a protoplanetary disk is known, and what must it refuse?", "kind": "action", "answer_data": [ "permitted actions", "preconditions", "refusals", "escalation" ] } ] } ] }, { "id": "material-and-composition", "name": "Material and composition", "description": "Materials, parts and how they are put together.", "findings": [ { "id": "parts-and-materials", "name": "Parts and materials", "description": "What a protoplanetary disk is built from and which parts are replaceable.", "questions": [ { "id": "parts-and-materials-q01", "text": "What identifies and describes the composition of a protoplanetary disk, and in what units or vocabulary?", "kind": "definition", "answer_data": [ "identifiers", "types and classes", "values with units", "explicit unknowns" ] }, { "id": "parts-and-materials-q02", "text": "Who or what asserted this about the composition of a protoplanetary disk, by which method, and when was it true?", "kind": "provenance", "answer_data": [ "authority", "method", "evidence", "event time", "knowledge time" ] }, { "id": "parts-and-materials-q03", "text": "What may an agent decide or do once the composition of a protoplanetary disk is known, and what must it refuse?", "kind": "action", "answer_data": [ "permitted actions", "preconditions", "refusals", "escalation" ] } ] } ] }, { "id": "condition-and-integrity", "name": "Condition and integrity", "description": "Wear, damage, health and the difference between working and broken.", "findings": [ { "id": "condition-assessment", "name": "Condition, damage and health", "description": "How the condition of a protoplanetary disk is judged and by whom.", "questions": [ { "id": "condition-assessment-q01", "text": "What identifies and describes the condition of a protoplanetary disk, and in what units or vocabulary?", "kind": "definition", "answer_data": [ "identifiers", "types and classes", "values with units", "explicit unknowns" ] }, { "id": "condition-assessment-q02", "text": "Who or what asserted this about the condition of a protoplanetary disk, by which method, and when was it true?", "kind": "provenance", "answer_data": [ "authority", "method", "evidence", "event time", "knowledge time" ] }, { "id": "condition-assessment-q03", "text": "What may an agent decide or do once the condition of a protoplanetary disk is known, and what must it refuse?", "kind": "action", "answer_data": [ "permitted actions", "preconditions", "refusals", "escalation" ] } ] } ] } ] }, { "id": "place-and-movement", "name": "Place and movement", "description": "Where a protoplanetary disk is, how it got there and where it may go (fixed).", "rationale": "A thing that can move needs its position recorded with a time, or every later claim about it is about a place it has left.", "layers": [ { "id": "location-and-placement", "name": "Location and placement", "description": "Position, containment and the reference frame the position is given in.", "findings": [ { "id": "position-and-frame", "name": "Position, container and reference frame", "description": "Where a protoplanetary disk is, and what that position is measured against.", "questions": [ { "id": "position-and-frame-q01", "text": "What identifies and describes the location of a protoplanetary disk, and in what units or vocabulary?", "kind": "definition", "answer_data": [ "identifiers", "types and classes", "values with units", "explicit unknowns" ] }, { "id": "position-and-frame-q02", "text": "Who or what asserted this about the location of a protoplanetary disk, by which method, and when was it true?", "kind": "provenance", "answer_data": [ "authority", "method", "evidence", "event time", "knowledge time" ] }, { "id": "position-and-frame-q03", "text": "What may an agent decide or do once the location of a protoplanetary disk is known, and what must it refuse?", "kind": "action", "answer_data": [ "permitted actions", "preconditions", "refusals", "escalation" ] } ] } ] }, { "id": "movement-and-transfer", "name": "Movement and transfer", "description": "How a protoplanetary disk is carried, installed or relocated.", "findings": [ { "id": "movement-events", "name": "Movement events and constraints", "description": "What counts as a movement, what records it and what limits it.", "questions": [ { "id": "movement-events-q01", "text": "What identifies and describes the movement of a protoplanetary disk, and in what units or vocabulary?", "kind": "definition", "answer_data": [ "identifiers", "types and classes", "values with units", "explicit unknowns" ] }, { "id": "movement-events-q02", "text": "Who or what asserted this about the movement of a protoplanetary disk, by which method, and when was it true?", "kind": "provenance", "answer_data": [ "authority", "method", "evidence", "event time", "knowledge time" ] }, { "id": "movement-events-q03", "text": "What may an agent decide or do once the movement of a protoplanetary disk is known, and what must it refuse?", "kind": "action", "answer_data": [ "permitted actions", "preconditions", "refusals", "escalation" ] } ] } ] } ] }, { "id": "state-and-lifecycle", "name": "State and lifecycle", "description": "The states a protoplanetary disk passes through and the events that move it between them.", "rationale": "Most decisions about a thing depend on what state it is in now, which is a claim with a time on it, not a property.", "layers": [ { "id": "lifecycle-stages", "name": "Lifecycle stages", "description": "From coming into existence to ceasing to be one of these.", "findings": [ { "id": "stages-and-transitions", "name": "Stages and transitions", "description": "The stages worth naming and what moves a protoplanetary disk between them.", "questions": [ { "id": "stages-and-transitions-q01", "text": "What identifies and describes the lifecycle of a protoplanetary disk, and in what units or vocabulary?", "kind": "definition", "answer_data": [ "identifiers", "types and classes", "values with units", "explicit unknowns" ] }, { "id": "stages-and-transitions-q02", "text": "Who or what asserted this about the lifecycle of a protoplanetary disk, by which method, and when was it true?", "kind": "provenance", "answer_data": [ "authority", "method", "evidence", "event time", "knowledge time" ] }, { "id": "stages-and-transitions-q03", "text": "What may an agent decide or do once the lifecycle of a protoplanetary disk is known, and what must it refuse?", "kind": "action", "answer_data": [ "permitted actions", "preconditions", "refusals", "escalation" ] } ] } ] }, { "id": "observations-and-status", "name": "Observations and current status", "description": "What is observed about a protoplanetary disk, how often and by whom.", "findings": [ { "id": "observation-record", "name": "Observation record", "description": "How an observation of a protoplanetary disk is recorded so that it can be superseded rather than overwritten.", "questions": [ { "id": "observation-record-q01", "text": "What identifies and describes an observation of a protoplanetary disk, and in what units or vocabulary?", "kind": "definition", "answer_data": [ "identifiers", "types and classes", "values with units", "explicit unknowns" ] }, { "id": "observation-record-q02", "text": "Who or what asserted this about an observation of a protoplanetary disk, by which method, and when was it true?", "kind": "provenance", "answer_data": [ "authority", "method", "evidence", "event time", "knowledge time" ] }, { "id": "observation-record-q03", "text": "What may an agent decide or do once an observation of a protoplanetary disk is known, and what must it refuse?", "kind": "action", "answer_data": [ "permitted actions", "preconditions", "refusals", "escalation" ] } ] } ] } ] }, { "id": "extent-and-geometry", "name": "Extent, geometry and naming", "description": "Where protoplanetary disk is, how far it reaches, and what it is called.", "rationale": "A boundary is claimed by an authority rather than observed in the world, so the claimant belongs in the record with the geometry.", "layers": [ { "id": "geometry", "name": "Geometry and reference system", "description": "Coordinates, extent and the frame they are given in.", "findings": [ { "id": "geometry-record", "name": "Geometry, precision and frame", "description": "What is recorded about position and shape, and to what accuracy.", "questions": [ { "id": "geometry-record-q01", "text": "What geometry describes protoplanetary disk, in which coordinate reference system, at what precision?", "kind": "measurement" }, { "id": "geometry-record-q02", "text": "Which authority publishes that geometry, and who publishes a different one?", "kind": "provenance" } ] } ] }, { "id": "names", "name": "Names and endonyms", "description": "What it is called in different languages and by different parties.", "findings": [ { "id": "naming-record", "name": "Names and who uses them", "description": "Official names, local names and contested names.", "questions": [ { "id": "naming-record-q01", "text": "By what names is protoplanetary disk known, in which languages, and which are official to whom?", "kind": "definition" }, { "id": "naming-record-q02", "text": "Where naming is contested, what should an agent record instead of choosing?", "kind": "action" } ] } ] } ] }, { "id": "containment-and-access", "name": "Containment, jurisdiction and access", "description": "What protoplanetary disk sits inside, who governs it, and who may enter.", "rationale": "Administrative containment decides which rules apply, and it changes without the place moving.", "layers": [ { "id": "containment", "name": "Administrative containment", "description": "The units it belongs to and the date each holds from.", "findings": [ { "id": "containment-record", "name": "Containing units and effective dates", "description": "Where it sits administratively and since when.", "questions": [ { "id": "containment-record-q01", "text": "Which administrative units contain protoplanetary disk, and since when does each containment hold?", "kind": "definition" }, { "id": "containment-record-q02", "text": "Which containment is disputed, and by which parties?", "kind": "boundary" } ] } ] }, { "id": "access", "name": "Access and permitted use", "description": "Who may enter or use it and under what conditions.", "findings": [ { "id": "access-rules", "name": "Access rules and their source", "description": "Entry, use and restriction, with the rule behind each.", "questions": [ { "id": "access-rules-q01", "text": "Who may enter or use protoplanetary disk, under what conditions, and by whose rule?", "kind": "action" }, { "id": "access-rules-q02", "text": "What seasonal or conditional closure applies, and how is it announced?", "kind": "definition" } ] } ] } ] }, { "id": "provenance-and-evidence", "name": "Provenance, evidence and time", "description": "Where every claim about a protoplanetary disk came from and when it held.", "rationale": "A claim without a source and a time cannot be superseded, only overwritten, and an agent that overwrites loses the ability to explain itself.", "layers": [ { "id": "source-and-authority", "name": "Source and authority", "description": "Who said it, on what evidence, and how strongly.", "findings": [ { "id": "claim-provenance", "name": "Claim provenance and confidence", "description": "The authority behind each claim about a protoplanetary disk and how confident it is.", "questions": [ { "id": "claim-provenance-q01", "text": "What identifies and describes a claim about a protoplanetary disk, and in what units or vocabulary?", "kind": "definition", "answer_data": [ "identifiers", "types and classes", "values with units", "explicit unknowns" ] }, { "id": "claim-provenance-q02", "text": "Who or what asserted this about a claim about a protoplanetary disk, by which method, and when was it true?", "kind": "provenance", "answer_data": [ "authority", "method", "evidence", "event time", "knowledge time" ] }, { "id": "claim-provenance-q03", "text": "What may an agent decide or do once a claim about a protoplanetary disk is known, and what must it refuse?", "kind": "action", "answer_data": [ "permitted actions", "preconditions", "refusals", "escalation" ] } ] } ] }, { "id": "time-and-versions", "name": "Time, versions and supersession", "description": "When a claim was true, when it was learnt, and what replaced it.", "findings": [ { "id": "validity-and-supersession", "name": "Validity period and supersession", "description": "How an old claim about a protoplanetary disk is retired without being erased.", "questions": [ { "id": "validity-and-supersession-q01", "text": "What identifies and describes the validity of a claim about a protoplanetary disk, and in what units or vocabulary?", "kind": "definition", "answer_data": [ "identifiers", "types and classes", "values with units", "explicit unknowns" ] }, { "id": "validity-and-supersession-q02", "text": "Who or what asserted this about the validity of a claim about a protoplanetary disk, by which method, and when was it true?", "kind": "provenance", "answer_data": [ "authority", "method", "evidence", "event time", "knowledge time" ] }, { "id": "validity-and-supersession-q03", "text": "What may an agent decide or do once the validity of a claim about a protoplanetary disk is known, and what must it refuse?", "kind": "action", "answer_data": [ "permitted actions", "preconditions", "refusals", "escalation" ] } ] } ] } ] } ] }, "statistics": { "bundles": 7, "layers": 15, "findings": 17, "questions": 47 } } } }